first base
Americannoun
idioms
noun
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baseball
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the base that a runner must reach safely to score a hit, and the first of the three bases he must reach safely on the way to home plate in order to score a run
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the fielding position nearest this base
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informal to accomplish the first step of an undertaking
Other Word Forms
Noun Inflected Forms
Etymology
Origin of first base
An Americanism dating back to 1835–45
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Shohei Ohtani leads at designated hitter, Freddie Freeman at first base, Max Muncy at third base, and Andy Pages in the outfield.
From Los Angeles Times ● Jun. 16, 2026
Then, the Dodgers would have had to reconfigure their defense, likely moving first baseman Freddie Freeman to third, catcher Dalton Rushing to first base and Smith behind the plate, forfeiting the designated hitter spot.
From Los Angeles Times ● Jun. 5, 2026
He had a diving catch at first base on a line drive from Tronstein in the seventh.
From Los Angeles Times ● May 27, 2026
As the crowd showered Vargas with cheers, Diamondbacks president Derrick Hall glanced over at first base.
From The Wall Street Journal ● May 15, 2026
“How about we make third base the part of the fence with the gate? And first base is only the right side of the tree,” I suggest.
From "Zara’s Rules for Record-Breaking Fun" by Hena Khan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.